When the two browsers launch along with Windows 10, the future-focused Spartan will have a clear edge over the legacy-minded Internet Explorer 11.
Password sync, now on IE11 on Microsoft's newest operating systems, makes moving among PCs, phones, and tablets easier. It's also handy for Microsoft to keep customers in its ecosystem.
The refresh of Internet Explorer stays in sync from laptop to tablet to phone, and features an enterprise mode for desktop as well as reading and data-saving modes for mobile.
Use of the browser has surged since Microsoft unveiled a version for Windows 7 in November, according to data from Net Applications.
Internet Explorer 11 saw a gain of almost two percentage points in all desktop browser traffic recorded by Net Applications in November.
This story was updated to correct Roger Capriotti's name.
Internet Explorer used to be the laughing stock of the browser world, but Microsoft's browser is once again a force to be reckoned with thanks to improvements in speed, security, and standards compliance.
Pasting a photo or a formatted list into a browser-based word processor isn't as fun as playing Hover online, but Microsoft still made the mundane chores a little better in its browser.
Six researchers win cash prizes for finding a total of 15 bugs in the preview version of Internet Explorer 11.
The new Internet Explorer 11 for Windows 7 Release Preview is 30 percent faster than the competition, says Microsoft. But more importantly, Web browsing is once again a big deal in Redmond.